Skip to product information
1 of 4

CUCIR Open Loop Hall Effect Current Sensor | 50A-1500A AC/DC, High Sensitivity CT

CUCIR Open Loop Hall Effect Current Sensor | 50A-1500A AC/DC, High Sensitivity CT

SKU:CUCIR-EKA-D20

Hole Diameter Selection
Measuring Range
Power Supply
Regular price $69.00
Regular price Sale price $69.00
Sale Sold out
🚚 Free Shipping 🕒 Delivery date: 7-12 Days 🔄 30-Day Returns
● Measuring range AC 50-1500A
Hole diameter 20/40/55 mm
● 12/24V DC power supply
● DC 4-20mA output signal
View full details

Overview

The CUCIR EKA Series is a high-performance open-loop Hall Effect current sensor designed for non-contact, isolated AC/DC current measurement. With a versatile range from 50A to 1500A and multiple aperture options (20mm/40mm/55mm), it provides a seamless 4-20mA signal output for direct integration with PLC, DSP, and data acquisition systems. Engineered for speed and stability, this sensor is the trusted choice for demanding environments, including solar inverters, battery management (BMS), and variable frequency drives (VFD).

Feature

High-Speed Response: Delivers real-time current feedback with minimal latency, ensuring precise control and protection for dynamic loads.

Engineering-Grade Accuracy: Features excellent linearity and Class 0.5/1.0 precision, providing stable data acquisition even in high-interference electrical environments.

Universal System Integration: Standard DC 4-20mA output and 12/24V DC power compatibility make it "plug-and-play" with global PLC, AD converters, and industrial controllers.

Robust Isolation & Durability: Engineered with high dielectric strength and overload resistance, designed to perform reliably in harsh industrial or renewable energy applications.

Flexible Installation: Multiple aperture sizes (Φ20mm - Φ55mm) allow for easy busbar or cable integration without breaking the circuit.

TECHNICAL SPECIFICATIONS

Hole Diameter
20mm
40mm
55mm
Measuring Range of Input Current (20mm)
AC 0–50A ~ 0–500A
Measuring Range of Input Current (40mm)
AC 0–200A ~ 0–1000A
Measuring Range of Input Current (55mm)
AC 0–500A ~ 0–1500A
Output Signal
DC 4–20mA
Zero Offset Current
±0.05mA
Offset Current Drift
±0.04mA/°C
Linearity
≤0.2%FS
Power Supply
DC 24V±10% or DC 12V±10%
Accuracy
1.0%F.S.
Response Time
≤1ms
Withstand Voltage
AC 2500V (between input, output and power supply)
Work Temperature
-25~+70°C
Storage Temperature
-40~+85°C
Humidity
≤95%RH (no dew formation, no corrosive gas)
Elevation
≤3500m
Shipping Weight
1kg
Measuring Method
Split-core type
Installation
Screw fixation

Dimension (unit: mm)

Dimension Drawing

Detail

Dimension Drawing

Product FAQ

What is an Open-Loop Hall Effect Current Sensor and how does it work? +
An Open-Loop Hall Effect Current Sensor is a high-precision device that monitors AC or DC current by detecting the magnetic field generated around a primary conductor. Using a high-sensitivity Hall element positioned within the air gap of a magnetic core, it converts the magnetic flux into a proportional analog voltage signal. The open-loop architecture is specifically engineered for rapid response times, cost-efficiency, and a compact footprint—making it the preferred solution for versatile current monitoring across ranges from 50A up to 1500A.
What are the primary advantages of using CUCIR Open-Loop sensors in AC systems? +
CUCIR Open-Loop Hall Sensors deliver critical performance benefits for modern AC infrastructure:

Galvanic Isolation: Provides robust electrical separation between the high-power measured conductor and the low-voltage output circuit, ensuring maximum user safety and system integrity.

Real-Time Monitoring: Features near-instantaneous response times, ideal for tracking dynamic loads in motor drives, inverters, and UPS systems.

High Linearity & Range: Supports wide measurement spans with exceptional linearity, allowing for seamless integration into PLCs and DSPs via standard 4-20mA or 0-5V signals.

System Compatibility: Designed to interface easily with variable frequency drives (VFDs) and specialized monitoring instrumentation.
Which industrial applications are best suited for this sensor? +
This sensor series is a versatile "workhorse" for industrial and energy sectors where reliable current data is mandatory. Key application scenarios include:

Energy Management: Critical for battery management systems (BMS), solar power inverters, and DC power distribution panels.

Motion Control: Optimized for motor control, servo systems, and high-precision welding/electroplating equipment.

Power Protection: Essential for uninterruptible power supplies (UPS) and signal conversion in heavy-duty industrial environments.

Versatile Range: Its compatibility with diverse current scales (AC 50A to 1500A) makes it equally effective for both light-duty monitoring and heavy-duty industrial sensing tasks.